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The named asteroid 17823 Bartels discovered 1998 by in recognition for my contributions to amateur astronomy. Making is the Key to Knowing. A telpe mirror is arguably the most accurate surface made by human or machine. Amazingly you can grind a mirror by hand and make a telpe with simple hand tools.

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This is one machine you need for grinding the leftovers obtained from sifting. This machine is stainless steel and for smallscale producers, you would need this instead of the hammer mill, which goes for 350,000. The advantage of this, over the general nonstainless grinder, is numerous.

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The Machines: Documentation: Information for ATMs Zip archive of MirroroMatic Yahoo Groups () 307 Contact Dennis ...

Typically, the primary mirror is made of glass. Pyrex is commonly used for the primary mirror because of its thermal stability, but for small mirrors, plate glass will work fine too. Telpe mirrors are relatively thick. The concave shaped face is made by repeatedly rubbing the primary glass blank over another blank called the "tool".

Nov 01, 2011· Basically there are two types of grinding/polishing machine. The ''traditional'' type which involves the mirror rotating at a relatively slow speed, a few rpm for a big mirror (1620 inches) with the tool moving across the mirror, from side to side, at a higher rpm depending on the size of the mirror and/or tool.

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A "wet" began by spraying the disks with water and smearing a small amount of grit over the tool (or mirror) with my fingers. The mirror (or tool) was then carefully placed on top of the tool (or mirror) and grinding started (, pushing the glass disk on top back and forth). The procedure was quite similar to grinding a smaller mirror ...

Mar 06, 2006· Making a homemade mirror grinding machine posted in ATM, Optics and DIY Forum: I want to make a motorized mirror grinder, any good info on this, i have a couple geared motors, low speed high torque. One more question ...will 1 1/2 shaft size pillow block bearings work good for a homemade EQ mount? Thank you, John

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Grinding Machines in Nigeria. electric 27 dry 19 powder 10 steel 9 stainless steel 9 mill 8 high 8 petrol 7 imported 7 honda 6. Types: Grinding Machines 280 Motors 5. Show all. Nigeria Lagos State 208 Abuja (FCT) State 49 Rivers State 4 Ogun State 4 Edo State 2 Katsina State 2 .

Aug 03, 2020· Read on: 10 Tips to Start Batteries Plus Bulbs Business in Nigeria. While grinding time, we use Double Bin sifter or Square Plan sifter to sift the meal from the miller,classification and sifting more super flour. A further element of major importance is sifting. Milling and sifting, form the very essence of grain processing.

A good starter size is the 150 mm (6") mirror. A 200mm (8") will also work. Most ATM books and websites recommend a Pyrex® mirror blank, but in my opinion, annealed plate glass is better for this first, "learn and practice" is cheaper, it is softer and grinds faster, needing less abrasives and with these small sizes, the low expansion glass like Pyrex has no practical .

My Mirror Grinding Machine. For a long time I''ve wanted to build a machine for grinding telpe mirrors. Dennis Rech''s MoM designs finally inspired me to just get up and do it. Over the years, I''d been collecting motors, gear boxes, pulleys, etc. Most of them came from industrial junk yards.

Grinding Machine for Large Telpe Mirrors I designed and built a grinding machine for mirrors up to 42 inches [] in diameter. By slipping on and off a couple of belts, the machine can quickly be reconfigured for spinning work or for stroking work.

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I plan on grinding and polishing this inch mirror to see how well it takes a figure, and if the pattern of the back prints through. I am also planning on making larger diameter versions of this design. I will post updates in the future. Update 02/15/12 I have started the process of rough grinding the inch honeycombback mirror blank.

I finally decided it was time to build a machine to help me grind the edges of the blanks true and round. This is my homebuilt edge grinding machine for grinding down my homecast mirror blanks. Click to see the whole project. This is a inch diameter, inch thick, lightweight honeycombback telpe mirror blank that I made myself.

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The problem with thin mirrors is that they flex more easily during grinding and polishing, making it hard to achieve the required surface precision. They also need a more complex mirror cell (additional support points). Plop is a useful software to let you calculate the number of points needed based on the diameter and thickness of the glass:

MirrorOMatic grinding machine. When I decided in 2009 after a tenyear break to get into mirror making again, it quickly became clear to me that I would need to construct machine, as hand grinding big mirrors is not something very beneficial for the hands of a musician.

Oct 29, 2007· ''m fine grinding my 12" plate glass mirror blank with the MOM by Dennis Rech. It''s an automatic mirror making machine that takes the "caveman" work out of mirror grinding.
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